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Method of manufacturing rotor

一种制造方法、转子的技术，应用在制造电动发电机、制造定子/转子本体、机电装置等方向，能够解决插入磁铁、接触面积增加等问题，达到减小负载、减小接触面积的效果

Inactive Publication Date: 2016-09-28
TOYOTA JIDOSHA KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if the gap between the inner wall of the opening of the rotor core and the magnet is too narrow, the contact area between the inner wall of the opening and the magnet increases, making it difficult to insert the magnet into the opening of the rotor core.

Method used

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  • Method of manufacturing rotor
  • Method of manufacturing rotor

Examples

Experimental program
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Effect test

Embodiment approach 1

[0037] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0038] figure 1 It is a top view (a) and a sectional view (b) which show the rotor manufactured using the rotor manufacturing method of this embodiment. also, figure 1 The sectional view shown in (b) is along the figure 1 (a) Cutting line IB-IB cross-sectional view. Such as figure 1 As shown, the rotor 1 includes a rotor core 10 and a magnet 21 . The rotor core 10 has a cylindrical shape and can be formed by laminating a plurality of electromagnetic steel sheets in the direction of the rotation axis of the rotor 1 . The rotor core 10 includes a plurality of openings 11 , and magnets 21 are respectively provided in the plurality of openings 11 . A through hole 12 is formed in the central portion of the rotor core 10 . also, figure 1 Although the case where the magnets 21 are provided in each of the eight openings 11 formed in the circumferential direction of...

Embodiment approach 2

[0066] Next, Embodiment 2 of the present invention will be described.

[0067] In the manufacturing method of the rotor of this embodiment, if Figure 16 As shown, when inserting the magnet 21 into the opening 11, the magnet 21 can be inserted into the opening 11 while tilting the structure 81 such that the opening direction of the opening 11 is inclined relative to the vertical direction. In addition, configurations other than this are the same as those described in Embodiment 1 (particularly refer to Figure 11 ) are the same, so the same reference numerals are attached to the same structural elements and repeated descriptions are omitted.

[0068] In the rotor manufacturing method described in Embodiment 1, the opening direction of the opening 11 of the rotor core 10 (in other words, the insertion direction of the magnet 21 ) is parallel to the vertical direction. Thus, when the opening direction of the opening 11 is parallel to the vertical direction, the gravity acting ...

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Abstract

A method of manufacturing a rotor according to the present invention includes: a process of stacking a plurality of electromagnetic steel plates on a jig (30) to fix the electromagnetic steel plates to the jig (30), and a process of inserting magnets (21) into a plurality of respective openings (11) included in a rotor core (10) in which the plurality of electromagnetic steel plates are stacked on one another. The magnets (21) are inserted into the respective openings (11) while a structure (80) including the rotor core (10) and the jig (30) is vibrated at a resonance frequency of the structure (80).

Description

technical field [0001] The invention relates to a method of manufacturing a rotor. Background technique [0002] In a rotating electrical machine including a rotor with permanent magnets and a stator with coils, the coils on the stator side are energized to form a magnetic field, and the rotor is driven to rotate. For example, the rotor includes a rotor core formed by laminating a plurality of electromagnetic steel sheets, and magnets embedded in the rotor core. [0003] Japanese Patent Application Laid-Open No. 2007-89291 discloses a technique of manufacturing a rotor by inserting magnets into each of a plurality of openings provided in a rotor core. In the technique disclosed in JP 2007-89291 A, the rotor core is formed by laminating a plurality of electromagnetic steel sheets. [0004] As described in the background art, a rotor used in a rotating electrical machine is formed by assembling magnets in each of a plurality of openings provided in a rotor core. Here, in or...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K15/02H02K15/03
CPCH02K15/03H02K15/02
Inventor 吉田显川浦弘贵
Owner TOYOTA JIDOSHA KK